@font-face {
    font-family: "Roboto";
    font-weight: 400;
    font-style: normal;
    src: url(assets/fonts/roboto-regular.woff2) format(woff2);
}

@font-face {
    font-family: "Roboto";
    font-weight: 700;
    font-style: bold;
    src: url(assets/fonts/roboto-bold.woff2) format(woff2);
}

@keyframes loading-dots {
    0% {
        opacity: 0.2;
    }
    20% {
        opacity: 1;
    }
    100% {
        opacity: 0.2;
    }
}

:root {
    --red: #e11;
    --orange: #e71;
    --yellow: #ee1;
    --green: #1a1;
    --blue: #17e;
    --purple: #a1a;

    --red-shaded: #b11;
    --orange-shaded: #b41;
    --yellow-shaded: #bb1;
    --green-shaded: #171;
    --blue-shaded: #14b;
    --purple-shaded: #717;

    --white: #eee;
    --light-gray: #aaa;
    --gray: #777;
    --dark-gray: #444;
    --black: #111;
}

body {
    display: grid;
    grid-template-rows: auto 1fr auto;
    font-family: "Roboto" !important;
    margin: 0;
    min-height: 100vh;
    background-color: var(--white);
    color: var(--black);
    font-size: 1.25rem;
}

body, body * {
    transition: all 0.25s ease-in-out;
}

h1, h2, h3, h4, h5, h6, p {
    margin: 0;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.75rem;
}

h3 {
    font-size: 1.5rem;
}

nav {
    position: fixed;
    box-sizing: border-box;
    border-bottom-left-radius: 2rem;
    border-bottom-right-radius: 2rem;
    padding: 1rem 2rem;
    width: 100%;
    background-color: var(--light-gray);
    box-shadow: 0 0 0.5rem var(--light-gray);
    z-index: 3;
}

nav .title-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav h1 {
    font-weight: bold;
}

nav .link-wrapper, nav .button-wrapper {
    display: flex;
    gap: 3rem;
}

nav a {
    margin: -0.5rem;
    padding: 0.5rem;
    cursor: pointer;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
    color: inherit;
}

nav a:hover {
    color: var(--blue);
}

nav a.hidden {
    display: none;
}

nav .button-wrapper a {
    font-weight: normal;
}

main {
    margin: 1rem 2rem;
}

.message-container {
    position: fixed;
    margin: 0 calc(20% - 2rem);
    width: 60%;
    z-index: 15;
}

.message-container * {
    box-sizing: border-box;
    width: 100%;
    max-height: 0;
    opacity: 0;
    background-color: var(--light-gray);
    text-align: center;
}

.message-container *.active {
    margin-bottom: 1rem;
    border: 0.25rem solid;
    border-radius: 1rem;
    padding: 1rem 2rem;
    max-height: fit-content;
    opacity: 1;
}

.message-container *.message {
    border-color: var(--green);
    box-shadow: 0 0 0.5rem var(--green);
}

.message-container *.warning {
    border-color: var(--yellow);
    box-shadow: 0 0 0.5rem var(--yellow);
}

.message-container *.error {
    border-color: var(--red);
    box-shadow: 0 0 0.5rem var(--red);
}

.popup-overlay {
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0;
    background-color: var(--black);
    font-size: 32px;
    font-weight: bold;
    pointer-events: none;
    z-index: 5;
}

.popup-overlay.active {
    opacity: 0.4;
    pointer-events: all;
}

.background-animation-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.9;
    pointer-events: none;
    overflow: hidden;
    z-index: -1;
}

.background-animation-container img {
    position: absolute;
    top: -10vh;
    width: 4rem;
    animation-name: falling-background-image;
    animation-timing-function: linear;
    image-rendering: pixelated;
}

.popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    border: 1px solid var(--black);
    border-radius: 2rem;
    padding: 1rem 2rem;
    width: 40rem;
    max-width: 80%;
    max-height: 90vh;
    background-color: var(--white);
    box-shadow: 0 0 0.5rem var(--black);
    z-index: 10;
    overflow: auto;
}

.popup.active {
    transform: translate(-50%, -50%) scale(1);
}

.popup .header,
#chatbot .header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
}

.popup .close-button,
#chatbot .close-button {
    stroke: var(--red);
    fill: var(--red);
    height: 2rem;
    width: 2rem;
    filter: drop-shadow(0 0 0.1rem var(--red));
    cursor: pointer;
}

.popup .close-button:hover,
#chatbot .close-button:hover {
    stroke: var(--red-shaded);
    fill: var(--red-shaded);
    filter: drop-shadow(0 0 0.1rem var(--red-shaded));
}

.popup h3 {
    margin-top: 0.75rem;
    margin-bottom: 0.25rem;
    font-size: 1.5rem;
}

.popup .content > :first-child {
    margin-top: 0;
}

.popup.settings .setting {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.popup.settings .setting .name {
    font-size: 1.5rem;
}

.popup.settings .setting .desc {
    color: var(--gray);
}

.popup.settings .setting .toggle {
    cursor: pointer;
    border-radius: 2.25rem;
    padding: 0.25rem;
    min-width: 3.5rem;
    background-color: var(--light-gray);
    box-shadow: 0 0 0.25rem var(--light-gray);
}

.popup.settings .setting .toggle:hover,
.darkmode .popup.settings .setting .toggle:hover {
    background-color: var(--gray);
    box-shadow: 0 0 0.25rem var(--gray);
}

.popup.settings .setting .toggle .element {
    position: relative;
    border-radius: 50%;
    height: 1.75rem;
    width: 1.75rem;
}

.popup.settings .setting .toggle[aria-checked="false"] .element {
    left: 0;
    background-color: var(--red);
    box-shadow: 0 0 0.25rem var(--red);
}

.popup.settings .setting .toggle[aria-checked="true"] .element {
    left: 1.75rem;
    background-color: var(--green);
    box-shadow: 0 0 0.25rem var(--green);
}

.popup.settings .setting .button {
    border-radius: 1rem;
    padding: 0.5rem 1rem;
    background-color: var(--blue);
    box-shadow: 0 0 0.5rem var(--blue);
    cursor: pointer;
}

.popup.settings .setting .button:hover {
    background-color: var(--blue-shaded);
    box-shadow: 0 0 0.5rem var(--blue-shaded);
}

.popup.settings hr {
    margin: 0.5rem 0;
    border: none;
    height: 2px;
    background-color: black;
}

#chatbot {
    border: 1px solid var(--black);
    border-radius: 2rem;
    padding: 1rem 2rem;
    position: fixed;
    width: 20rem;
    max-width: calc(100% - 8rem);
    left: 2rem;
    bottom: 0.5rem;
    background-color: var(--white);
    box-shadow: 0 0 0.5rem var(--black);
    opacity: 0;
    z-index: 5;
}

#chatbot.active {
    opacity: 1;
}

#chatbot .chat {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin: 0.5rem 0;
    height: 50vh;
    overflow: auto;
}

#chatbot .message {
    border-radius: 1rem;
    padding: 0.5rem 1rem;
}

#chatbot .message.user {
    border-bottom-right-radius: 0;
    margin-left: 2rem;
    background-color: var(--blue);
}

#chatbot .message.bot {
    border-bottom-left-radius: 0;
    margin-right: 2rem;
    background-color: var(--light-gray);
}

#chatbot .message ul {
    margin: 0.25rem 0;
    padding: 0;
    padding-left: 1.25rem;
}

#chatbot .message li {
    color: var(--blue);
    cursor: pointer;
}

#chatbot .message li:hover {
    text-decoration: underline;
}

#chatbot .message .dot {
    display: inline-block;
    margin-right: 0.5rem;
    border-radius: 50%;
    height: 0.5rem;
    width: 0.5rem;
    background-color: var(--gray);
    opacity: 0.2;
    animation: loading-dots 1.5s infinite;
}

#chatbot .message .dot:nth-child(2) {
    animation-delay: 0.25s;
}

#chatbot .message .dot:nth-child(3) {
    animation-delay: 0.5s;
}

#chatbot .input-wrapper {
    display: flex;
    gap: 0.5rem;
}

#chatbot .input-wrapper * {
    border-radius: 1rem;
}

#chatbot .input-wrapper input {
    flex: 1;
    border: 1px solid var(--black);
    padding: 0.25rem 1rem;
    min-width: 0;
    font-size: 1.25rem;
    box-shadow: 0 0 0.5rem var(--black);
}

#chatbot .input-wrapper a {
    flex: 0;
    padding: 0.5rem 1rem;
    background-color: var(--blue);
    box-shadow: 0 0 0.5rem var(--blue);
    cursor: pointer;
}

#chatbot .input-wrapper a:hover {
    background-color: var(--blue-shaded);
    box-shadow: 0 0 0.5rem var(--blue-shaded);
}

section {
    margin-bottom: 1rem;
}

footer {
    position: relative;
    border-top-left-radius: 2rem;
    border-top-right-radius: 2rem;
    padding: 1rem 2rem;
    background-color: var(--light-gray);
    box-shadow: 0 0 0.5rem var(--light-gray);
    font-size: 1rem;
    text-align: center;
}

footer a {
    color: var(--dark-gray);
}

footer .button-wrapper {
    display: flex;
    gap: 1rem;
    position: absolute;
    top: 50%;
    left: 2rem;
    transform: translateY(-50%);
    transition: none;
}

footer .button-wrapper a {
    margin: -0.25rem;
    padding: 0.25rem;
}

footer .button-wrapper img {
    height: 1.5rem;
}

.high-contrast {
    --white: #fff;
    --black: #000;
}

.high-contrast nav,
.high-contrast footer {
    color: var(--white);
    background-color: var(--black);
    box-shadow: 0 0 0.5rem var(--black);
}

.high-contrast footer a {
    color: var(--white);
}

.high-contrast .message-container * {
    color: var(--white);
    background-color: var(--black);
}

.high-contrast .popup.settings .setting .desc {
    color: var(--black);
}

.high-contrast .popup.settings .setting .toggle {
    background-color: var(--black);
    box-shadow: 0 0 0.25rem var(--black);
}

.high-contrast #chatbot .message.bot {
    color: var(--white);
    background-color: var(--black);
}

.reduce-motion,
.reduce-motion *,
.disable-motion,
.disable-motion * {
    transition: none !important;
    animation: none !important;
}

.classic-look * {
    border-radius: 0 !important;
    box-shadow: none !important;
    filter: none !important;
}

.darkmode {
    color: var(--white);
    background-color: var(--black);
}

.darkmode nav,
.darkmode footer {
    background-color: var(--dark-gray);
    box-shadow: 0 0 0.5rem var(--dark-gray);
}

.darkmode .message-container * {
    background-color: var(--dark-gray);
}

.darkmode .popup {
    border-color: var(--white);
    background-color: var(--black);
    box-shadow: 0 0 0.5rem var(--white);
}

.darkmode .popup hr {
    background-color: var(--white);
}

.darkmode .popup.settings .setting .toggle {
    background-color: var(--dark-gray);
    box-shadow: 0 0 0.25rem var(--dark-gray);
}

.darkmode #chatbot {
    border-color: var(--white);
    background-color: var(--black);
    box-shadow: 0 0 0.5rem var(--white);
}

.darkmode #chatbot .message.bot {
    background-color: var(--dark-gray);
}

.darkmode footer a {
    color: var(--light-gray);
}

@media (max-width: 500px) {
    .mobile-hidden {
        display: none !important;
    }

    nav .link-wrapper {
        flex-direction: column;
        gap: 0;
    }

    nav .link-wrapper a {
        font-size: 1.25rem;
    }

    nav .button-wrapper {
        gap: 2rem;
    }

    nav a {
        margin: 0;
        padding: 0;
    }

    .message-container {
        margin: 0;
        width: calc(100% - 4rem);
    }

    .popup.settings .setting:has(.button) {
        flex-direction: column;
    }

    .popup.settings .setting .desc,
    #chatbot .message {
        font-size: 1.25rem;
    }

    footer {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    footer .button-wrapper {
        position: static;
        transform: none;
    }
}

@keyframes falling-background-image {
    from {
        transform: translateY(0);
    }
    to {
        transform: translateY(110vh);
    }
}